544 PROCEEDINGS OF THE NATIONAL UUSEl I/. vol.38. 



gaping, Larger dactyl with a large molariform tooth at its base. 

 Legs compressed, margins hairy, dactyli long, slightly curved. 



Width 28 to 52 mm. 



Salto (near Capon), January 31. 



Not previously known from Peru. 

 Distribution. — Costa Rica; Peru. 



PILUMNOIDES PERLATUS ( Poeppig). 



Plate 50, fig. 2. 



Hepatua perlatus Posppig, Arch, fur Naturg., vol. 2, pt. I, 1836, p. 135, pi. 1, fig. 2. 



Pilumnoides perlatus Milne Edwards and Lucas, d'Orbigny's Voy. Amor. 

 Mor., vol. (i, pt. 1, 1843, p. 21; vol. f), atlas, 1847, pi. ft, fig. 1. 



Small. Cam pace convex, suborbicular, broader than long; anterior 

 two-thirds tuberculate, posterior third nearly smooth; antero-latcral 

 margin with five or six irregular teeth, the margin continued inward 

 upon the carapace by a granulous line. Front most produced at 

 middle, bilobed; orbit subcircular, margin almost entire. Chelipeds 

 equal, stout, tuberculate, the tubercles arranged in rows on lower 

 half of palm, one row terminating in a large tooth on outside of 

 immovable linger; upper edge of palm tridentate; lingers brown 

 with white tips, gaping slightly in basal half. Legs slender, terminal 

 half furry; dactyli ending in long, curved, horny tips. 



Width ( .» to 20 mm. 



Taken in trawl. Bay of Sechura, west of Matacaballa, depth about 5 fathoms, April 



s. I!)07. 

 Dredged near northeast side «»f San Lorenzo Island, depth 2£ fathoms, February 5. 



Distribution. — From Panama to Chile. 



ERIPHIA SQTJAMATA Stimpson. 



Plate 41, fig. 1. 



Eriphia squamata Stimpson, Ann. Lye. Nat. Hist. X. Y., vol. 7, 1859, p. 56.— 

 A. Mum; Edwards, Crust. Rgg. Mex., 1880, p. 339, pi. 5(i, fig. :i. 



Carapace truncate in front, sides convex anteriorly, straight and 

 convergent posteriorly, greatest width considerably in front of middle. 

 Surface anteriorly rough with granules and short ruga-; sides armed 

 with seven or eight stout, curved spines, [nterorbital distance one-half 

 width of carapace; half this space lies between orbii and antenna- 

 front between antenna' cut by a broad median sinus into two truncate, 

 tuberculate lobes: orbit nearly round. ( helipeds unequal, stout ; wrisl 

 and hand covered with large, flattened, scale-like tubercles which be- 

 come obsolete on lower part of palm; lingers stout, a large basal tooth 

 on the dactyl. Legs compressed, long-hairy. 



Width 35 to in nun. 

 Taken on the beach at has Vacas, near Capon, January 23, 1908. "Pangora." 



Distribution. From Cape St. Lucas. Lower California, to Chile. 



